Chains

LangChain is the open-source orchestration framework for building reliable, data-aware applications powered by large language models (LLMs).

LangChain is the essential framework for engineering sophisticated LLM applications, available in both Python and JavaScript libraries. It simplifies development by providing a modular structure to 'chain' together components: models (like OpenAI or Anthropic), data sources (via vector databases like Milvus), and computational tools. This abstraction allows developers to quickly build complex systems like Retrieval-Augmented Generation (RAG) pipelines, intelligent chatbots, and autonomous AI agents. Launched by Harrison Chase in October 2022, the framework accelerates the move from prototype to production, offering a consistent interface for integrating LLMs with external data and computation for real-world utility.

https://www.langchain.com/